以Ca(OH)2、SiO2化学纯为原料,分别掺人不同质量分数的CuO制备不同晶型组成的C3S,运用相图分析、XRD、IR测试方法及MDI jade5.0软件对C3S亚晶生长、晶型转变过程进行研究.结果表明:由CaO-CuO、CuO-SiO2二元相图分析,CuO促进CaO-SiO2固相反应效应明显；C3S经CuO掺杂后,其晶型转变和亚晶成长均受到影响.当CuO掺量小于1.5％时,C3S亚晶尺寸减小趋势明显,大于1.5％时,减小趋势减缓.且C3S晶型随掺量变化先由T型向R型转换,但掺量大于2.0％时,R型又逐步转换为M1型.同时IR分析表明,818cm-1、999cm-1谱带处的先减弱后增强及497 cm-1伸缩振动平移先增大后减小,均说明C3S晶体对称性先增大后减小的变化趋势.
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